Salo, Finland climate

Dfb Warm-summer humid continental

Salo has a seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 73°F, while the coldest is February averaging around 18°F at night. Around 25 inches of precipitation falls each year, peaking in August (3.1 inches) and easing off in April (1.2 inches). At latitude 60°N, day length swings from 5.4 hours in midwinter to 18.6 hours at midsummer.

☀️ Summers

Mild

Highs near 73°F in July.

❄️ Winters

Very cold

Lows near 18°F in February.

About 146 freezing nights a year

🌧️ Rain

Moderate rainfall

About 25 in of rain a year.

Wettest in August

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

+1.6 °F vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Salo climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	30	30	37	50	61	68	73	71	61	48	39	34
Avg temp (°F)	25	24	30	41	51	59	64	61	53	42	35	29
Avg low (°F)	19	18	23	32	40	49	55	52	45	37	31	24
Precipitation (in)	2.0	1.6	1.3	1.2	1.3	2.2	2.5	3.1	1.9	2.7	2.5	2.3

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	30	30	37	50	61	68
Avg temp (°F)	25	24	30	41	51	59
Avg low (°F)	19	18	23	32	40	49
Precipitation (in)	2.0	1.6	1.3	1.2	1.3	2.2

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	73	71	61	48	39	34
Avg temp (°F)	64	61	53	42	35	29
Avg low (°F)	55	52	45	37	31	24
Precipitation (in)	2.5	3.1	1.9	2.7	2.5	2.3

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	11	8	8	7	7	9	9	10	9	11	11	12
Days with high ≥ 90°F (days)	—	—	—	—	—	—	0.3	0.0	—	—	—	—
Days with low ≤ 32°F (days)	26	25	25	16	4	0.0	—	—	2	10	16	22

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	11	8	8	7	7	9
Days with high ≥ 90°F (days)	—	—	—	—	—	—
Days with low ≤ 32°F (days)	26	25	25	16	4	0.0

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	9	10	9	11	11	12
Days with high ≥ 90°F (days)	0.3	0.0	—	—	—	—
Days with low ≤ 32°F (days)	—	—	2	10	16	22

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	76	71	65	65	61	63	63	63	66	75	78	77
Clear days (≤ 30% cloud)	2	3	4	4	5	4	5	4	4	2	2	3
Partly cloudy days (30–70%)	8	9	12	11	13	13	12	12	10	8	7	7
Cloudy days (≥ 70%)	21	17	15	15	13	14	15	15	16	21	21	21
Relative humidity (%)	98	97	93	83	77	77	77	78	84	91	96	98
Wind speed (mph)	1.6	1.7	1.8	1.5	1.2	1.0	0.9	1.0	1.0	1.0	1.1	1.3

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	76	71	65	65	61	63
Clear days (≤ 30% cloud)	2	3	4	4	5	4
Partly cloudy days (30–70%)	8	9	12	11	13	13
Cloudy days (≥ 70%)	21	17	15	15	13	14
Relative humidity (%)	98	97	93	83	77	77
Wind speed (mph)	1.6	1.7	1.8	1.5	1.2	1.0

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	63	63	66	75	78	77
Clear days (≤ 30% cloud)	5	4	4	2	2	3
Partly cloudy days (30–70%)	12	12	10	8	7	7
Cloudy days (≥ 70%)	15	15	16	21	21	21
Relative humidity (%)	77	78	84	91	96	98
Wind speed (mph)	0.9	1.0	1.0	1.0	1.1	1.3

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Salo Karkka, a weather station, about 1 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →